W222 S63 AMG M157 Catless Downpipes – Premium Stainless Steel High-Flow Set

For the serious W222 S63 owner who wants to unlock the full potential of the M157 BiTurbo V8. These premium stainless steel catless downpipes dramatically reduce exhaust restriction, deliver a deeper, more aggressive AMG exhaust note, and provide noticeable improvements in turbo spool and mid-range response.

What's Included

• • Complete left + right catless downpipe set
• • Premium V-band clamps and mounting hardware
• • Gaskets included

Key Benefits

• • Significant reduction in exhaust backpressure for faster turbo spool and stronger mid-range power
• • Deeper, more aggressive AMG V8 sound with rich crackles and pops when tuned
• • Premium 304 stainless steel construction with back-purged TIG welds for long-term reliability
• • True bolt-on fitment — no cutting or modifications required
• • Designed for serious S63 builds — the flagship Mercedes-AMG sedan deserves flagship performance

Vehicle Compatibility

Mercedes-AMG S63 (W222) 2014–2017 with M157 BiTurbo 5.5L V8

Note: Professional installation recommended. Tuning highly advised to maximize gains and prevent check engine lights.

Why S63 Owners Choose These Downpipes

The W222 S63 is already a flagship grand tourer. These catless downpipes transform it into a true performance machine — delivering the sound, response, and power the M157 V8 was always capable of. Perfect for owners who want to take their S-Class to the next level without compromising daily drivability.

Installation & Notes

Direct bolt-on replacement. Average install time: 2–3 hours. Professional installation strongly recommended. Re-check for leaks after the first heat cycle.

Frequently Asked Questions

Q: Will these throw a check engine light?
A: Yes, in most cases without proper ECU tuning. We recommend pairing these downpipes with custom tuning for best results and to clear codes.

Q: How much power can I expect?
A: Noticeable gains in mid-range torque and throttle response. Exact numbers depend on your tune and supporting modifications.

Q: Are these street legal?
A: No. These are off-road / competition use only.